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Baltic Breakfast: The Baltic Sea food web in a changing environment


Date: Wednesday 26 January 2022

Time: 09.30 – 10.15

Location: Digital event

Environmental changes have consequences for the Baltic Sea's food webs - and ecosystems. Upcoming Baltic Breakfast webinar will present two studies on environmental change and the food web.



Researcher Maciej Tomczak, Stockholm University Baltic Sea Centre, will share the results from an international project looking at changes in several factors over an 80-year period. Several large-scale ecosystem changes – regime shifts – have been identified. The interaction between benthic and pelagic species has weakened in the central Baltic Sea. Oxygen content controls the ecosystem more than before, while salinity becomes less controlling. Recently, fishing has had a greater impact on the food web.

The research of Eva Ehrnsten, Stockholm University Baltic Sea Centre, focuses on how changes in phosphorus and nitrogen inputs have affected different types of benthic animals since the 1970s. Despite widespread bottom oxygen depletion, the total amount of animals has increased. The composition is also affected. Reduced inputs of nitrogen and phosphorus and climate change may alter the picture in the future. 

Understanding how the system has changed over time is important when management targets are set. Welcome to a Baltic Breakfast to learn more about the food web changes and discuss management targets!




Practical information

This webinar is broadcasted on this webpage 26 January 2021, 9:30-10:15 (CET) (Please observe that the differs from the ordinary Baltic Breakfast time!)

No registration is needed.

The webinar will be recorded and can be watched afterwards at this same webpage.



Questions and discussion

We highly welcome the audience to ask questions, in advance or during the webinar. E-mail your question to

Write your question on using the code #22102

Discuss the topic on Twitter, using the hashtag #balticbreakfast

Are you a journalist? Contact us to plan an interview with the experts!



About Baltic Breakfast

Baltic Breakfast is a series of short breakfast webinars organised by Stockholm University Baltic Sea Centre. Their aim is to present the latest knowledge about issues of central importance to the Baltic Sea environment. The webinars are addressed to people in different sectors working for a sustainable development in the Baltic Sea region and everyone interested in environmental issues of the Baltic Sea.

Most Baltic Breakfasts are held in Swedish, but sometimes they are targeted at an international audience and held in English. If you want to get invitations to the upcoming webinars or subscribe to our monthly newsletters, click here.